The Pyle Audio PLAM3000 is a 3000 watt 4/3/2 channel bridgeable amplifier that is a part of the Pyle Academy series. It offers the same features as the rest of the Academy series differing only in channels, power, price and size. It has a tri-way configuration, variable gain control, MOSFET Pulse Width Modulated Power Supply, built in variable subwoofer crossover, RCA low level inputs, high level low impedance MOLEX input connector, a signal/noise ratio of 90dB, a THD less than 0.04%, a speaker output terminal strip, short circuit protection, power on LED indicator, and a LED diagnostic condition indicator. The Audio PLAM3000 has 14.17 inches in length, 9.76 inches in width, and 2.26 inches in height. One nice thing about this series is that the manufacturer site has the item manuals in PDF format for easy access.